[PATCH] i.MX SPI DMA cleanup

[Dirk Behme]

Hi Sascha,

On 17.02.2016 14:28, Sascha Hauer wrote:
> This picks up a series sent by Anton Bondarenko last year. It
> contains the remaining not yet upstreamed patches from Antons series
> plus some more DMA related cleanup patches.
>
> My mission was to hunt a bug in the DMA code path sometimes causing
> an additional word in the RX FIFO which locked up the driver in the
> next transfer. It turned out that this was no bug in the driver but
> instead in the device tree: We used the wrong SDMA script for i.MX6.
> The ECSPI cores are connected through the SPBA, so according to the
> reference manual we need the shp/mcu scripts rather than the app/mcu
> scripts.


Are you talking about what is known as "TKT238285 hardware issue"

https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/drivers/spi/spi-imx.c?id=a02bb401f8ae264be782ee57d98bdd99f14c8022

?

Or are you talking about a different issue?

Best regards

Dirk